package com.web.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.entity.UserInfo;

public class UserLoginFilter implements Filter {
	
	@Override
	public void destroy() {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
			throws IOException, ServletException {
		// TODO Auto-generated method stub
		HttpServletRequest request2=(HttpServletRequest) request;
		HttpServletResponse response2=(HttpServletResponse) response;
		HttpSession session = request2.getSession();
		UserInfo us=(UserInfo) session.getAttribute("loger");
		
		String path=request2.getRequestURI();
		if(path.toLowerCase().endsWith(".css")
				|| path.toLowerCase().endsWith(".js")
				|| path.toLowerCase().endsWith(".png")
				|| path.toLowerCase().endsWith(".jpg"))
		{
			chain.doFilter(request2, response2);
		}else if(us!=null && us.getIsadmin() == 0){
			chain.doFilter(request2, response2);
		}else{
			response2.sendRedirect("/myweb2/login.jsp");
		}
	}

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}
